Seat bottom for vehicles and watercraft



FIG. 1 is a perspective view of a seat bottom for vehicles and watercraft showing our design. In this Figure and in the following described Figures the broken lines which define the bounds of our claimed design form no part thereof;

FIG. 2 is a front elevational view, the rear elevational view being a mirror image thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a seat bottom for vehicles and watercraft, as shown and described. 